ppt

1. Subatomic Particles
Tiny particles that make up atoms.
Main types: Protons, Neutrons, Electrons.

2. Protons
Found in nucleus
Positive charge (+1)
Mass ~1 amu

3. Neutrons
Found in nucleus
No charge (neutral)
Mass ~1 amu

4. Electrons
Found outside nucleus
Negative charge (-1)
Very small mass

5. Summary
Protons + Neutrons = Nucleus
Electrons orbit nucleus
Together, they form atoms.